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Lauterbach, Andreas und Klaus, Ehrenfried und Kröber, Stefan und Ahlefeldt, Thomas und Loose, Sigfried (2010) Microphone array measurements on high-speed trains in wind tunnels. Berlin Beamforming Conference BeBeC2010, 2010-02-24 - 2010-02-25, Berlin, Germany. ISBN 978-3-00-030027-1.
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Offizielle URL: http://www.bebec2010.com
Kurzfassung
The present study evaluates the capabilities of the phased microphone array technique for the localisation and quantification of aeroacoustic sound sources of high speed trains in wind tunnels. The major challenge is to obtain a sufficient resolution of the sources with low source strength. The experiments were carried out using 1:25 models in the Aeroacoustic Wind Tunnel Brunswick (AWB) of the German Aerospace Center (DLR). This Göttingen – type wind tunnel has an open test section which is surrounded by an anechoic chamber. The microphone array consists of 143 microphones and is positioned outside the flow. In order to achieve reasonable results a shear layer correction is applied. Performing a phase-calibration can increase the signal-to-noise ratio, especially for higher frequencies. This procedure will be presented als well.
| elib-URL des Eintrags: | https://elib.dlr.de/63297/ | ||||||||||||||||||||||||
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| Dokumentart: | Konferenzbeitrag (Vortrag, Paper) | ||||||||||||||||||||||||
| Titel: | Microphone array measurements on high-speed trains in wind tunnels | ||||||||||||||||||||||||
| Autoren: |
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| Datum: | 2010 | ||||||||||||||||||||||||
| Open Access: | Nein | ||||||||||||||||||||||||
| Gold Open Access: | Nein | ||||||||||||||||||||||||
| In SCOPUS: | Nein | ||||||||||||||||||||||||
| In ISI Web of Science: | Nein | ||||||||||||||||||||||||
| Seitenbereich: | Seiten 1-12 | ||||||||||||||||||||||||
| Name der Reihe: | Conference Proceedings | ||||||||||||||||||||||||
| ISBN: | 978-3-00-030027-1 | ||||||||||||||||||||||||
| Status: | veröffentlicht | ||||||||||||||||||||||||
| Stichwörter: | Beamforming, microphone array, phased array, high-speed train, aerodynamic, aeroacoustic, cavity noise, Strouhal number, Verkehr, Lärm | ||||||||||||||||||||||||
| Veranstaltungstitel: | Berlin Beamforming Conference BeBeC2010 | ||||||||||||||||||||||||
| Veranstaltungsort: | Berlin, Germany | ||||||||||||||||||||||||
| Veranstaltungsart: | internationale Konferenz | ||||||||||||||||||||||||
| Veranstaltungsbeginn: | 24 Februar 2010 | ||||||||||||||||||||||||
| Veranstaltungsende: | 25 Februar 2010 | ||||||||||||||||||||||||
| Veranstalter : | GFal, DLR und TU-Berlin | ||||||||||||||||||||||||
| HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||||||||||
| HGF - Programm: | Verkehr | ||||||||||||||||||||||||
| HGF - Programmthema: | Bodengebundener Verkehr (alt) | ||||||||||||||||||||||||
| DLR - Schwerpunkt: | Verkehr | ||||||||||||||||||||||||
| DLR - Forschungsgebiet: | V BF - Bodengebundene Fahrzeuge | ||||||||||||||||||||||||
| DLR - Teilgebiet (Projekt, Vorhaben): | V - Next Generation Train (alt) | ||||||||||||||||||||||||
| Standort: | Göttingen | ||||||||||||||||||||||||
| Institute & Einrichtungen: | Institut für Aerodynamik und Strömungstechnik > Hubschrauber Institut für Aerodynamik und Strömungstechnik > Experimentelle Verfahren | ||||||||||||||||||||||||
| Hinterlegt von: | Lauterbach, Andreas | ||||||||||||||||||||||||
| Hinterlegt am: | 02 Mär 2010 13:29 | ||||||||||||||||||||||||
| Letzte Änderung: | 24 Apr 2024 19:28 |
Verfügbare Versionen dieses Eintrags
- Microphone array measurements on high-speed trains in wind tunnels. (deposited 02 Mär 2010 13:29) [Gegenwärtig angezeigt]
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